As of 18 months after the Battle of Geonosis, Dr. Uthan was reportedly held in a Republic maximum-security prison. During her incarceration, she wondered whether or not the cloaked man who had commissioned her research tried to contact her. The man was most likely the Dark Lord of the Sith, Darth Sidious, who kept her work as an insurance policy against the clones if they ever turned against him.

Sometime after Order 66 the Sith formerly known as Supreme ChancellorPalpatine used her FG36 virus on her home planet of Gibad who was rebelling against the new Empire. The virus was not clone specific at the time it was released on her homeworld, killing every humanoid on the planet. Crushed by virtually destroying her whole home planet and the people she loved, she decided to retaliate by recreating the virus to release personally on Coruscant. Kal Skirata reasoned with her before she could to create a antivirus first, as a different way to fight Palpatine and protect themselves. The antivirus was then tested on herself to see if it worked, then it was spread all through Mandalore. It is assumed that she began work on returning the aging gene in clones to normal after FG36 was finished. It is unknown if she ever spread the virus to Coruscant.

Doctor Uthan was able to convey strong emotion by whispering fiercely, or, when she was tied up by clone commandos, simply writhing and wriggling. She had wild hair that was mainly blue and black, with red stripes, and she was also fond of septsilk clothes. Ghez Hokan in particular was impressed by her subtle political skill, knack for dressing well and carrying herself like an empress.